John Dawson Eccles, 2nd Viscount Eccles, CBE (born 20 April 1931), is a British Conservative peer and businessman.

The son of the 1st Viscount Eccles and Sybil Dawson, he was educated at Winchester College and Magdalen College, Oxford, where he graduated with a Bachelor of Arts in philosophy, politics and economics in 1954.

In 1985, he was appointed a Commander of the Order of the British Empire (CBE); and since 1989 a DSc (Silsoe).

He was later invited to election as one of the 92 remaining hereditary peers in a by-election forced by the death of the 4th Baron Aberdare, and returned to the House in 2005.

Lord Eccles married Diana Catherine Sturge 29 January 1955, in Bletchingley, Surrey.